You didn't say which engine you have but Chevrolet's oil pumps are located inside the oil pan.
inside the oil pan
It is inside of the oil pan and the oil pan is bolted to the bottom of the engine.
The oil pressure switch on a 1997 Chevy Blazer is located on the bottom of the engine, near the oil filter. It monitors the output and pressure of the oil pump.
It is inside of the engine oil pan. You will have to remove the oil pan to get to it.
in the oil pan
The oil pressure switch on a 1998 Chevy Blazer is on the side of the engine block. It is located above the oil filter.
Mounted to the bottom of the engine in the oil pan.
The oil cap on a 1998 Chevy Blazer is located on the passenger side of the motor. It is just to the left of the manifold cover.
behind the frunt bumper
It is located in the oil pan
in the oil pan
where is the oil pump located in chevi tracker 2.0 L